M44784-103 ZERO ENCLOSURES, M44784-103 Datasheet - Page 29

• Manufacturer Part Number: M44784-103
• Description: Storage, Cases
• Manufacturer: ZERO ENCLOSURES

Specifications of M44784-103

• Lead Free Status / RoHS Status: na

Alloy: An aluminum alloy is a metal that is a mixture of aluminum and one or more other elements.
Anodizing: Electrochemically converting the surface of aluminum from metallic aluminum to
Artificial Aging: Speeding up the natural aging cycle by heating the metal for a short time.
CF: Flush fitting cover.
CI: Inside fitting cover.
COG: Outside fitting cover with gasket clearance.
COL: Outside fitting cover with loose fit.
COT: Outside fitting cover with tight fit.
Cold Working: Applying a mechanical force (such as deep drawing) to metal at room temperature
Deep Drawing: Using a ram to force an aluminum sheet into a draw die to produce a shell. See
Die: See draw die.
Draw Die: Tooling used in the deep drawing process to produce shells.
EMI Gasket: A gasket used in closures and on panel flanges to keep EMI radiation from entering
EMI Shielding: Shielding against radiated or conducted EMI/RFI.
Flange: A rim into which a panel can be mounted.
Hardening: Increasing the hardness of metal by suitable treatment such as by strain or heat.
Heat Treat: Temper produced by heating.
Heat-Treatable Alloy: An aluminum alloy that can be hardened by heat treatment. Generally
Height: The depth of a shell.
Mu-metal: A metal with high nickel content (78% nickel, iron, plus other additions) providing high
Nutplate: A nut capable of receiving a screw for mounting a panel, etc.
O.D.: Outside diameter measured at tangency between bottom radius (R1) and side.
Points of Tangency: The points at which the straight portions of the shell walls intersect the
Precipitation Hardening: A metal-treating process that increases the strength of aluminum by
Quenching: The quick chilling of aluminum to retain, at room temperature, the metallurgical
R1: The radius at the bottom of drawn shells.
R2: The radius at the sides of drawn shells.
Reflectivity: The ability of a surface to mirror or reflect radiant energy. The reflectance of aluminum
is exceptionally high.
1100: 99% pure aluminum.
3003: Aluminum/manganese alloy.
6061: Aluminum/manganese/silicon alloy.
aluminum oxide (alumina) by making aluminum the anode in a plating-type electrochemical
cell. It is used not only for added protection, but also in conjunction with dying and sealing
to create decorative effects.
at such a rate that strain-hardening occurs.
also draw die. Deep drawing is also used to produce many cup-shaped products in other
industries.
or escaping from an enclosure.
Associated with processes such as age hardening, strain or work hardening, precipitation
hardening, or quench hardening.
includes those alloys in 2XXX, 6XXX, and 7XXX series.
magnetic permeability. Mu-metal shells are used as enclosures or covers for shielding/
magnetically isolating critical parts from magnetic interference. Mu-metal ‘absorbs’ magnetic
lines in the vicinity rather than allowing them to pass through critical components.
beginning of the radius corners.
precipitation alloying material into the structure of aluminum. Natural aging is involved if the
process occurs at room temperature, while artificial aging involves the application of heat.
structure produced by heat treatment at an elevated temperature.
Glossary of Terms
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